Tenable Holdings, Inc.
A cybersecurity company that helps organizations find and fix weaknesses in their computer networks before attackers can exploit them. Its best-known product is Nessus, a vulnerability scanner created in 1998 by co-founder Renaud Deraison when he was just 17, which became an industry standard. The company was founded in 2002 and named "Tenable" for the word's meaning — capable of being held and defended — a fitting motto for a business built on keeping networks secure.
Granted 1.04M · Sold 527.7K
Granted 1.20M · Sold 1.03M
Granted 449.1K · Sold 218.1K
Granted 24.9K
Granted 43.2K · Sold 10.2K
Granted 120.7K · Bought 12.0K · Sold 95.8K
Granted 139.9K · Sold 139.6K
Granted 28.0K · Bought 4.5K · Sold 5.7K
Granted 112.0K · Sold 98.5K
Granted 43.6K · Bought 12.0K
Granted 45.0K · Sold 40.0K
Granted 31.7K · Sold 6.0K
Granted 29.8K
Granted 20.2K
Granted 30.7K · Sold 28.1K
Granted 5.0K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Vintz Stephen ACo-Chief Executive Officer, Director · 170 transactions | +405.2% | 475.1K | 1.04M | — | 527.7K |
| Yoran AmitPresident, CEO and Chairman, Director · 175 transactions | — | 461.9Kas of Nov 2024 | 1.20M | — | 1.03M |
| Thurmond Mark C.Co-Chief Executive Officer, Director · 155 transactions | — | 172.0K | 449.1K | — | 218.1K |
| Huffard John C JrDirector · 5 transactions | +28.4% | 112.5K | 24.9K | — | — |
| Anschutz BarronChief Accounting Officer · 43 transactions | — | 73.0K | 43.2K | — | 10.2K |
| Coviello Arthur W JrDirector · 21 transactions | +176.3% | 57.8K | 120.7K | 12.0K | 95.8K |
| Seawell A BrookeDirector · 10 transactions | — | 54.5K | 139.9K | — | 139.6K |
| Vicks Raymond Jr.Director · 19 transactions | — | 43.1K | 28.0K | 4.5K | 5.7K |
| Riddick Stephen AGeneral Counsel & Secretary · 42 transactions | +47% | 42.2Kas of Aug 2022 | 112.0K | — | 98.5K |
| Brown Matthew CharlesChief Financial Officer · 7 transactions | — | 39.9K | 43.6K | 12.0K | — |
| Kennelly Jerry MDirector · 13 transactions | +71.8% | 35.8Kas of Aug 2022 | 45.0K | — | 40.0K |
| Tosheff George AlexDirector · 8 transactions | — | 31.3K | 31.7K | — | 6.0K |
| Howe Niloofar RaziDirector · 7 transactions | — | 29.8K | 29.8K | — | — |
| Keane Margaret MDirector · 5 transactions | — | 20.2K | 20.2K | — | — |
| Zecher Linda KayDirector · 16 transactions | +30.4% | 11.0K | 30.7K | — | 28.1K |
| Hammonds KimberlyDirector · 1 transaction | -76.7% | 5.0Kas of May 2022 | 5.0K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 5 years: -2.17M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.